Antlr4.Test.StringTemplate.TestImports.TestImportTemplateFromAnotherGroupObject C# (CSharp) Метод

        public void TestImportTemplateFromAnotherGroupObject()
        {
            /*
            dir1
                a.st
                b.st
            dir2
                a.st
             */
            string dir1 = tmpdir;
            string a = "a() ::= <<dir1 a>>\n";
            string b = "b() ::= <<dir1 b>>\n";
            writeFile(dir1, "a.st", a);
            writeFile(dir1, "b.st", b);
            string dir2 = tmpdir;
            a = "a() ::= << <b()> >>\n";
            writeFile(dir2, "a.st", a);

            TemplateGroup group1 = new TemplateGroupDirectory(dir1);
            TemplateGroup group2 = new TemplateGroupDirectory(dir2);
            group2.ImportTemplates(group1);
            Template st = group2.GetInstanceOf("b");
            string expected = "dir1 b";
            string result = st?.Render();
            Assert.AreEqual(expected, result);

            // do it again, but make a template ref imported template
            st = group2.GetInstanceOf("a");
            expected = " dir1 b ";
            result = st?.Render();
            Assert.AreEqual(expected, result);
        }